In individuals with lumbar curvature, significant regressions in the curvature have been observed with spinal orthosis treatment, especially with use of a minimum of 20 hours a day. Symptoms such as numbness and decreased sense of touch are observed in the areas where the curvature is located, and changes in the skin structure are affected by the changes in the spine. Sensory testing may vary with changes in body posture. At the same time, the use of spinal orthosis, balance, fat mass, and the presence of pain show us sensitivity to touch on the skin. Sensory stimuli on the skin and trunk posture are interconnected. There are a limited number of studies in the literature examining the effects of sensory test results and fat mass on individuals diagnosed with AIS after using a spinal orthosis.